Sink rack



FIG. 1 is a perspective view of the sink rack showing my new design;

FIG. 2 is a perspective view thereof from another angle;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a left side elevational view thereof;

FIG. 6 is a right side elevational view thereof;

FIG. 7 is a top plan view thereof;

FIG. 8 is a bottom plan view thereof; and,

FIG. 9 is a perspective view thereof when it is being used.

The broken lines shown in the drawings represent portions of the sink rack that form no part of the claimed design. 

CLAIM The ornamental design for a sink rack, as shown and described. 